[Mimedefang] Filtering File extentions

[Link, Pete]

How can I tell the file extention sub filter to ignore emails from certain
domains???

For example, ignore if domain is abc.com and abcd.com



# This procedure returns true for entities with bad filenames.
sub filter_bad_filename ($) {
    my($entity) = @_;
    my($bad_exts, $re);

    # Bad extensions
    $bad_exts =
'(ade|adp|app|asd|asf|asx|bas|bat|chm|cmd|com|cpl|crt|dll|exe|fxp|hlp|hta|ht
o|inf|ini|ins|isp|jse?|lib|lnk|mdb|mde|msc|msi|msp|mst|ocx|pcd|pif|prg|reg|s
cr|sct|sh|shb|shs|sys|url|vb|vbe|vbs|vcs|vxd|wmd|wms|wmz|wsc|wsf|wsh|\{)';

    # Do not allow:
    # - curlies
    # - bad extensions (possibly with trailing dots) at end or
    #   followed by non-alphanum
    $re = '\.' . $bad_exts . '\.*([^-A-Za-z0-9_.,]|$)';
    return re_match($entity, $re);
}